Re: AKAI GXC-46D Cassette recorder/player
I had a portable radio-cassette player that would hum badly about half the time it was used, yet behaved impeccably the rest of the time; it turned out to be fussy about the supply polarity. Having the outer end of the transformer primary winding to neutral must have acted as a crude electrostatic screen .....
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If I have seen further than others, it is because I was standing on a pile of failed experiments.
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